– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Tue 08 Sep Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Tue 08 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Tue 08 Sep Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Warm (max 22°C on Wed afternoon, min 9°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Warm (max 21°C on Sat afternoon, min 11°C on Sat night). Wind will be generally light. | |||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  | |  | | | | | | | | |
clear | clear | some clouds | rain shwrs | rain shwrs | rain shwrs | some clouds | rain shwrs | light rain | rain shwrs | clear | some clouds | clear | clear | clear | clear | |
Cloud base (m) | 6450 | 8950 | 600 | 1900 | 2400 | 800 | 900 | 3100 | 5350 | 2750 | 2050 | |||||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | 0.1 | 0.2 | 0.1 | — | 0.1 | 0.1 | 0.1 | — | — | — | — | — | — |
max °C | 15 | 20 | 22 | 17 | 15 | 17 | 12 | 12 | 15 | 13 | 19 | 21 | 14 | 16 | 18 | 14 |
min °C | 14 | 16 | 22 | 14 | 13 | 16 | 9 | 10 | 13 | 13 | 14 | 20 | 11 | 12 | 18 | 12 |
chill °C | 14 | 16 | 22 | 14 | 12 | 16 | 9 | 10 | 13 | 13 | 14 | 20 | 11 | 12 | 18 | 12 |
Freezing level m | 4000 | 4350 | 4150 | 3650 | 3000 | 2900 | 2450 | 2450 | 2700 | 2850 | 2900 | 2900 | 2900 | 3000 | 3100 | 3250 |
 | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — |
 | — | — | 7:34 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:24 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Warm (max 22°C on Wed afternoon, min 9°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 21°C on Sat afternoon, min 11°C on Sat night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.